Dual slider unit



Jan- 8 1946- H. MORIN. 2,392,685

DUAL SLIDER UNIT Filed Dec. `1'?, 1942 INVENTOR vdr-f M M, BY

ATTORNEYS Patented Jan. 8, 1946 UNITED STA-.TE

DUAL SLIDER UNIT Louis H. Morin, Bronx, N. Y., assigner of onehalf to Davis Marinsky, Bronx, N.V Y.

Application December 12, 1942, Serial No. 468,759

12 Claims.

'This invention relates to separable fasteners employing stringers coupled and uncoupled by sliders movable along the stringers. More particularly. the invention comprises a. dual slider unit having a hollow body with contracted end portions with means for supporting sliders at the contracted end portions of the body for universal movement thereof; and stillfurther in the provision of a unitof this kind having guide channels at opposed sides of the unit for supporting the links of the stringers in a position angularly to the normal engaging position thereof, thereby leaving the separated stringers free intermediate the channels and the spaced sliders. The novel features of the invention will be best understood from the following description when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed, and in which the separate parts are designated by suitable reference characters in each of the views and in which: y

Fig. 1 is a plan view of one form of slider unit made according tomy invention diagrammatically illustrating one adaptation and use thereof.

Fig. 2 is a bottom plan view of the unit indicating in dotted lines the approximate outline of the tape and in dot and dash lines, the path of the links of the stringers when uncoupled by the unit.

Fig. 3 is a longitudinal section on the line 3--3 of F18. 2.

Fig. 4 is a cross section on the line 4--4 of Fig. 2,

Fig. 5 is a section on the line 5--5 of Fig. 3.

Fig. 6 is a view similar to Fig. 2 showing only a part of the construction and showing a modification.

Fig. 7 is a section on the line 1--1 of Fig. 6, indicating the position of the Stringer links in the devices; and i Fig. 8 is a section on the line 8-8 of Fig. 6.

In separable fastener stringers of the double action type, such as described in my prior application Ser. No. 444,189, filed May 23, 1942, Patent No. 2,322,537, granted June 22, 1943, there have been uses of two sliders arranged upon a pair of stringers to couple and uncouple the stringers. By reason of the double action properties of the links oi the stringers, the sliders will freely couple the stringers in any arrangement cf the sliders thereon. The present invention deals with a unit construction, which comprises a. body having -end portions in connection with which sliders are coupled, so that in moving the unit along the stringers, the sliders will maintain the stringers coupled beyond the limits of the unit, while separating the stringers intermediate the spaced sliders.

To give one illustration of an adaptation and use of the invention, the unit is made in the form of a hollow or apertured body to receive, for example the barrel of a gun, In such uses, the gun barrel is movable in an elongated slot or passage and the fastener is employed to maintain the passage closed, except for that part of the passage occupied momentarilyby the gun barrel. In some installations of this kind, the slot or opening through which the gun barrel travels is substantially straight or arranged in a substantially flat surface. In other instances, however, the barrel is arranged -to move through a turret having varying curvatures and in such instances, the slider unit is arranged upon a contour fastener, as specifically described in my prior application Ser. No. 444,189, led May 23, 1942,' and as diagrammatically illustrated in Fig. 1 of the drawing. i

In Fig. 1, Ill and II represent the stringers of separable fastener, wherein the spacing of the links on opposed stringers are such as to give a curved contour to the resulting fastener, as indicated by the curvatures l2, I3. At I4 is shown a lslider unit comprising a hollow or apertured body I 5, the opening through which is indicated at I6. This opening will be of such contour and dimensions as to receive the article or member to be arranged therein and the walls of the aperture or opening I6 are preferably rounded, as indicated in Fig. 3 of the drawing. in order to compensate for different angular positions that may be assumed by the body I5.

The body I5 has contracted end portions I1, I1 each having on one side surface recesses I8, I8' centrally of which are apertures I9, I9.

More or less conventional sliders 20, 20' are adapted for mounting in connection with the end portions Il, I1', the sliders comprising the usual channeled bodies formed by spaced walls 2l, 22 joined at the wide en-d by a connecting web 23 and the wall 2l of each slider has spaced outwardly projecting pivot bearings 24, note Fig. 5,

with which is pivoted a coupling joint 25 by a pin 26. The coupling joint is in the form of a disc 21. having downwardly projecting apertured lugs 28 adapted to be arranged within the bearings 24 and an upwardly projecting pin 29 recessed to receive a split ring 30 employed to support the sliders against displacement from the contracted ends I1, II'. It will appear that the pins 29 are free to rotate in the apertures I9, I9'. Thus, this constructionprovides a universal mounting rbe exposed to freezing` temperatures.. f event that ice maycollect or `form on'the fastener f and around the unit I4, the free mounting of the links'of-the stringers will enable the unit to be mounting of the sliders, in connection with the lends of the apertured bodies, compensates for any irregular or curved paths traversed by the unit in the movement of the unit from one end of the stringers to the opposite end thereof.

For purposes of description, the body of the unit may be said to have terminal ends, with which the sliders are coupled. In referring to sliders, it is understood that references are made to'substantially conventional sliders of this kind 'having the diverging-cha'nnels at th wide end the plates 3l by screws 35. It will appear that o the channels 33 support the links of the stringers in a position angularly to the normal coupling,A

position of the stringers. n N

It will appear from a consideration of Figs. 2

and 3 of the drawing that there isa wide spacing between the side channels 33 and thewidediverging channel ends of the sliders 2U, 20'. This spacing leaves the links of the stringers free between the sliders 20, andthe channels 33 and also in spaced relation to the walls 36 of the body I5. VThis construction is desirable -in certain uses of the invention and particularly where the apparatus', in connection with which the closure is employed, is subject to extremely low temperatures, for example, on airplanes or tanks tliat` may In the operated 'and to break up. anyice formation whichmay prevail. In otheradaptations and uses of the invention, it will be understood that the body I5 may be -made toconform with .the

line of travelv of the spaced vstringersybetween the sliders'and the channels.. 33. However, the

free mounting of the stringers as above described is also desirable from. the standpoint of, ,minimzing frictionaly engagement; thus ,producing fa freer operation of the unit along thestringers.

In Figs. 6-8 inclusive is shown a modifiedstructure, wherein the `body 3-1 oi! thefdualslider unit has lat its contracted ends flanged sockets-38.101' *receiving sliders 39. The sliders havel spaced bearings 4I),` through which apivot pin, such for example as cotterpinsA 4I, is passed for pivotally coupling the sliders in connection with said end portions, the pinspassing throughV apertures 42 in the spaced flanges of the sockets 38. Theapertures 43 in the bearings 40 are made-sufllciently ofthe sliders 39, the sockets 38 being also sufciently large'to compensate for thismovement. It will thus be seen that the sliders l39 will have a universal mounting, within said limits, in connection with the body-31. In* the accompanying drawing only one end portionof the body 31 is yshown and duplication of the. other end is unnecessary. f

`At the wide'side portions of the 31 are thereof converge to a single channel at the other narrower end of said sliders.

Having fully described my invention, what I claim as new and desire to secure by Letters Pating strlngers, said unit comprising a hollow body having contracted terminal ends, sliders arranged at the contracted ends of said body, and means couplingthe sliders to,. cpposite ,s ides of saidbody andadapted to provideuniversal movement of the sliders on the hollowy body..` j ,v

2. A. slider unitl'for .separable fasteners, employing strin'gers,v saidunit comprising.v a hollow body `having, contracted terminalgends. Sliders arranged' at the contracted ends. of said body,

means coupling the; sliders'v for, universal 'movement on lsaid terminals" ends, said last named means 'comprising coupling members pivotally attached tothe. sliders, vand said members 4having pin portion'slrotatably mounted in the 'termi- `.nalends ofvsaidlbofdv/I .13. Alsliderk unitv for. separable.'fastenersem- (,ploying stringersQsaidunit comprisinga hollow Ib r dyl. h'aving contracted terminal 'end s, sliders arranged .at the contracted ends ofv Asaid., vbody, -means coupling 'the' slidersior luniversal,movement on ,l said terminal ends," saidA last named `.means comprising coupling n ien bers 'pivotally attachedto th'e'slidersjsaid members having pin portions rotatably ymounted in the' terminal ends of. said, body, andmeans retaining said tmanners.

against displacement fIQmvsaid terminal ends,

. 4. `A slider unit for separable fasteners 'employing fstringers, said uni-t comprising ahollow body ,f havingv contracted terminalfends, ',sliders1 "ar .rangedrat thecontracted ends of said body, means `large so as 'to provide lateral tilting ymovement 4,ing stringers having links, said unit comprising.

coupling the sliders to opposite sidesof'said body and adapted to providey universal movement of the sliders on thehollowrbody, and mean'sfat side portions of` said body centrally `thereof l forming guide VAhannelsl for the links o'f lstringers movable between `spacedsliders` on said body.

5'. A slider unit for separable fasteners employla hollow body having contracted terminal ends, sliders arranged at the contracted ends of lsaid formed channels 44 to Vreceive vthe links,-45 of f l between' spaced sliders on said body, .saidchanstringers 46, 41. The channels 44 are formed by curved walls. as indicated in Fig. 7, to compensate for movement of the body 31`relatively to a barrel or other member arranged in `the aperture 5I.

It willbe apparent that, in the structureshown body, means coupling the sliders -for universal movement on said terminal ends, means lat side portions of saidbody centrally thereof forming guidechannels for the links of stringers movable '-nels supporting the `stringersin spaced relation- 'ship and beyond the limits ofthe opening in said body, and'said channels also supporting the links' vo1' the stringers in a `position. angularly to the normal coupling .positlon'of said-links.

in Figs.' 6-8 inclusive, the sliders may be said to inclusive.` Y

It will also be apparent thatthe luniversal 6. A dual slider unit for separable fastener stringers, said unit comprising an elongated body, means for guiding the links of-a pairof stringers inspaced relationship to .each other longitudinallyof, said` body, sliders arranged at terminal'ends 'pling engagement of the stringers beyond the limits of both ends of said body in the movement of the body longitudinally of the stringers, and means pivoting the sliders to said terminal ends to swing on an aXis disposed transversely to the longitudinal plane of said body.

7. A dual slider unit for separable fastener stringers, said unit comprising an elongated body, means for guiding the links of a pair of stringere in spaced relationship to each other longitudinally of said body, sliders arranged at terminal ends of the body with diverging channels of said sliders directed inwardly, thereby maintaining coupling engagement of the stringers beyond the limits of both ends of said body in the movementl of the body longitudinally of the stringers, means pivoting the sliders to said terminal ends to swing on anY axis disposed transversely to the longitudinal plane of said body, and means comprising perpendicular pins for rotatably mounting the sliders in said terminal ends.

8. A dual slider unit for separable fastener stringers, said unit comprising an elongated body, means for guiding the links of a pair of stringers in spaced relationship to each other longitudinally of said body, sliders yarranged at terminal ends of the body with diverging channels of said sliders directed inwardly, thereby maintaining coupling engagement of the stringers beyond the limits of both ends of said body in the movement of the body longitudinally of the stringers, means pivoting the sliders to said terminal ends to swing on an axis disposed transversely to the longitudinal plane of said body, means comprising perpendicular pins for rotatably mounting the sliders in said terminal ends, and the contour of said body intermediate the iirst named means and said sliders providing free passage of the Stringer links between the sliders and said first named means.

9. In a device for use on separable fastener stringers, a pair of sliders movable along the stringere ln spaced relationship to each other. means coupling and spacing said sliders, and means universally coupling the sliders with said rst named means at opposite sides thereof.

l0. In a device for use on separable fastener stringers, a pair of sliders movable along the stringers in spaced relationship to each other` means coupling and spacing said sliders, means universally coupling the sliders with said first named means, said first named means comprising a body having a large aperture centrally thereof, and means detachable with respect to opposed sides of said body forming, in conjunction with the body, channels for guiding the links of the stringers.

11. In a device for use on separable fastener stringers having links, a pair of sliders movable along the stringers in spaced relationship to each other, means coupling and spacing said sliders. means universally coupling the sliders with said rst named means, said rst named means comprising a. body having a large aperture centrally thereof, means detachable with respect to opposed sides of said body forming, in conjunction with the body, channels for guiding the links of the stringers, and both sides 0f said body between the last named means and the sliders being spaced from the Stringer links in the movement of said body longitudinally of the stringers.

12. A dual slider unit movable along fastener stringers having links to couple and uncouple the same, said unit having terminal ends arranged in predetermined spaced relationship to each other, sliders coupled to said terminal ends to provide rocking and swinging movement of the sliders on said body in the movement of the body longitudinally of the stringers, and means on the body intermediate said sliders for supporting the links of the stringers in spaced relationship to each other and in a position angular to the normal coupling position of said links.

' LOUIS H. MORIN. 

